JPS58144104U - Braking device for hydraulically driven machines - Google Patents

Braking device for hydraulically driven machines

Info

Publication number
JPS58144104U
JPS58144104U JP4144282U JP4144282U JPS58144104U JP S58144104 U JPS58144104 U JP S58144104U JP 4144282 U JP4144282 U JP 4144282U JP 4144282 U JP4144282 U JP 4144282U JP S58144104 U JPS58144104 U JP S58144104U
Authority
JP
Japan
Prior art keywords
pipe
switching valve
hydraulic
hydraulic pump
hydraulic motor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP4144282U
Other languages
Japanese (ja)
Inventor
勝利 梅村
Original Assignee
日立建機株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 日立建機株式会社 filed Critical 日立建機株式会社
Priority to JP4144282U priority Critical patent/JPS58144104U/en
Publication of JPS58144104U publication Critical patent/JPS58144104U/en
Pending legal-status Critical Current

Links

Landscapes

  • Operation Control Of Excavators (AREA)
  • Fluid-Pressure Circuits (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図は従来技術による制動装置を備えた走行駆動用の
油圧回路を示す説明図、第２図は他の従来技術の油圧回
路を示す説明図、第３図は本考案に係る制動装置を備え
た走行駆動用の油圧回路を示す説明図である。 １・・・油圧ポンプ、３・・・走行モータ、４・・・タ
ンク、５・・・方向切換弁、２１・・・第１の配管、２
２・・・第２の配管、２３・・・第３の配管、２４・・
・第４の配管、２５・・・サクション配管、２６・・・
制動弁、２７・・・切換弁、２８．２９・・・チェック
弁。FIG. 1 is an explanatory diagram showing a hydraulic circuit for traveling drive equipped with a braking device according to the prior art, FIG. 2 is an explanatory diagram showing another hydraulic circuit according to the prior art, and FIG. FIG. 2 is an explanatory diagram showing a hydraulic circuit for driving the vehicle. DESCRIPTION OF SYMBOLS 1... Hydraulic pump, 3... Travel motor, 4... Tank, 5... Directional switching valve, 21... First piping, 2
2...Second piping, 23...Third piping, 24...
・Fourth piping, 25... Suction piping, 26...
Brake valve, 27...Switching valve, 28.29...Check valve.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 油圧ポンプと、該油圧ポンプから供給される圧油により
駆動される油圧モータと、前記油圧ポンプと油圧モータ
との間に設けられた方向切換弁とを有する油圧駆動機械
において、第１の配管を前記方向切換弁と前記油圧モー
タの−のポートとの間に接続し、第２の配管の一端を前
記油圧モータの他のポートに接続し、第３の配管の一端
を前記方向切換弁に接続し、第４の配管の一端をタンク
から前記油圧ポンプに油液を供給するサクション配管に
接続し、前記第２、第３、第４の配管の他端を制動弁と
接続し、該制動弁を前記第３の配管から前記第２の配管
にのみ油液の流通を持すチェック弁と、前記第２の配管
と前記第４の配管とを連通させ、前記第３の配管が高圧
となったときに切換わってその連通を遮断する切換弁と
で形成し、前記サクション配管には前記第４の配管内の
油液が前記タンクに流入するのを防止するチェック弁を
配設したことを特徴とする油圧駆動機械の制動装置。In a hydraulic drive machine having a hydraulic pump, a hydraulic motor driven by pressure oil supplied from the hydraulic pump, and a directional switching valve provided between the hydraulic pump and the hydraulic motor, a first pipe is provided. Connected between the directional switching valve and the - port of the hydraulic motor, one end of a second pipe connected to another port of the hydraulic motor, and one end of a third pipe connected to the directional switching valve. One end of the fourth pipe is connected to a suction pipe that supplies oil from a tank to the hydraulic pump, and the other ends of the second, third, and fourth pipes are connected to a brake valve, and the brake valve A check valve that allows oil to flow only from the third pipe to the second pipe communicates with the second pipe and the fourth pipe, and the third pipe is under high pressure. a switching valve that switches to cut off the communication when Braking device for hydraulically driven machinery.
JP4144282U 1982-03-24 1982-03-24 Braking device for hydraulically driven machines Pending JPS58144104U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4144282U JPS58144104U (en) 1982-03-24 1982-03-24 Braking device for hydraulically driven machines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4144282U JPS58144104U (en) 1982-03-24 1982-03-24 Braking device for hydraulically driven machines

Publications (1)

Publication Number Publication Date
JPS58144104U true JPS58144104U (en) 1983-09-28

Family

ID=30052626

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4144282U Pending JPS58144104U (en) 1982-03-24 1982-03-24 Braking device for hydraulically driven machines

Country Status (1)

Country Link
JP (1) JPS58144104U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020152937A1 (en) * 2019-01-25 2020-07-30 日立建機株式会社 Construction machine
WO2021090627A1 (en) * 2019-11-07 2021-05-14 日立建機株式会社 Construction machine

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5125372B1 (en) * 1965-03-31 1976-07-30

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5125372B1 (en) * 1965-03-31 1976-07-30

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020152937A1 (en) * 2019-01-25 2020-07-30 日立建機株式会社 Construction machine
JP2020118260A (en) * 2019-01-25 2020-08-06 日立建機株式会社 Construction machine
CN112585361A (en) * 2019-01-25 2021-03-30 日立建机株式会社 Construction machine
CN112585361B (en) * 2019-01-25 2022-11-18 日立建机株式会社 Construction machine
US11859367B2 (en) 2019-01-25 2024-01-02 Hitachi Construction Machinery Co., Ltd. Construction machine
WO2021090627A1 (en) * 2019-11-07 2021-05-14 日立建機株式会社 Construction machine
JP2021076162A (en) * 2019-11-07 2021-05-20 日立建機株式会社 Construction machine

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